Signal and noise modeling and analysis of free-running low noise DRO in Ka-band compatible to MMIC technology

A low noise free-running Dielectric Resonator Oscillator based on AlGaAs/GaAs HBT compatible to MMIC (Monolithic Microwave Integrated Circuit) has been designed and simulated. The design uses a HBT with f/sub T/ in 71 GHz, and low flicker noise in Ka band. Large signal analysis of the oscillator is...

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Bibliographic Details
Main Authors: Firouzeh, Z.H., Abdipour, A., Mohammadi, A.
Format: Conference Proceeding
Language:English
Subjects:
1f noise
Dielectrics
Gallium arsenide
Heterojunction bipolar transistors
Integrated circuit noise
Integrated circuit technology
Microwave oscillators
MMICs
Phase noise
Signal analysis
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Summary:A low noise free-running Dielectric Resonator Oscillator based on AlGaAs/GaAs HBT compatible to MMIC (Monolithic Microwave Integrated Circuit) has been designed and simulated. The design uses a HBT with f/sub T/ in 71 GHz, and low flicker noise in Ka band. Large signal analysis of the oscillator is based on harmonic balance method, and simultaneous signal and noise method has been applied to calculate output phase noise spectrum. The designed circuit oscillates at 28.225 GHz with output power of 9.29 dBm. The phase noise of stable oscillator has been determined to be -116 dBc/Hz and -127 dBc/Hz at 100 kHz and 1 MHz off carrier, respectively.
DOI:10.1109/ICMMT.2002.1187834